Enhong Shen

A manganese molybdenum phosphate with a tunnel: hydrothermal synthesis, structure and catalytic properties of (NH3CH2CH2NH3)10H3O)3(H5O2)Na2[MnMo12O24(OH)6(PO4)4(PO3OH)4][MnMo12O24(OH)6(PO4)6(PO3OH)2] · 9H2O

A manganese molybdenum phosphate, (NH3CH2CH2NH3)10(H3O)3(H5O2)Na2[MnMo12O24(OH)6 (PO4)4(PO3OH)4][MnMo12O24 (OH)6(PO4)6(PO3OH)2]·9H2O, has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. The structure of this compound may be considered to be two [Mo6O12(OH)3(PO4)2(HPO4)2]7- units bonded together by a manganese atom, although several P–O groups are not protonated on account of coordination to a Na+ cation. One-dimensional tunnels were formed in the solid. A probe reaction of the oxidation of acetaldehyde with H2O2 using this compound as catalyst was carried out in a liquid–solid system, showing that the manganese molybdenum phosphate has high catalytic activity in the reaction.

A ferric molybdenum phosphate with a tunnel: hydrothermal synthesis and structure of (NH3CH2CH2NH3)2· (NH3CH2CH2NH2)3·Na·[Fe2Mo12O30(PO4) (HPO4)4(H2PO4)3] · 7H2O

Abstract A new ferric molybdenum phosphate containing a tunnel structure and crystallographically different clusters has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. A probe reaction of the oxidation of acetaldehyde with H2O2 using the title compound as catalyst was carried out in a liquid-solid system, showing that the title compound had high catalytic activity in the reaction.

A chromic molybdenum phosphate with a tunnel structure: hydrothermal synthesis and structure of (NH3CH2CH2NH3)2·(NH3CH2CH2NH2)3·[NaCr2Mo12O30(PO4)(HPO4)4(H2PO4)3]·6H2O

Abstract A chromic molybdenum phosphate, (NH3CH2CH2NH3)2·(NH3CH2CH2NH2)3·[NaCr2Mo12O30(PO4)(HPO4)4(H2PO4)3]·6H2O, involving molybdenum present in V oxidation, has been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction and IR spectrum. Deep brown-red crystals are formed in the triclinic system, space group P 1 , a=12.067(2), b=14.677(3), c=21.290(2) A , α=80.940(10)°, β=82.960(10)°, γ=76.61(2)°. The structure of the title compound may be considered to be two [Mo6O15(HPO4)(H2PO4)3]5− units bonded to a chromic atom, although several P–O groups are not protonated on account of coordination with a Na+ cation. The one-dimensional tunnels were formed in the solid of the title compound.